Compared to the direct conversion of ICE architecture to BEV architecture, the use of new electrical and electronic architecture can radically reduce the use of automotive wiring harness. By simplifying the automotive circuit design and reducing the wiring in the vehicle, the weight of the wire harness is directly reduced, and it is also conducive to the automated production of the wire harness and reduces the production cost. In addition, with the gradual popularization of intelligent vehicles, the higher requirements of domain controllers for data transmission may drive the next generation of vehicles to achieve complete Ethernet, and the wiring harness connection method will usher in new changes.